Fig. 1

Overview of the distribution of ricefishes and representative species. (A) The ricefish family is widespread across southern, southeastern and eastern Asia (red: approximate distribution outside of Sulawesi, blue: approximate distribution in Sulawesi). (B) Although only representing a tiny fraction of the distribution, the Indonesian island of Sulawesi harbors an unequal portion of the taxonomic diversity, with more than half of all known species. All of these species are locally endemic on the island. (C) Phenotypic diversity also appears to be more diverse in Sulawesi, suggesting evolutionary drivers promoting diversification. Pictures with kind permission by H.-G. Evers, A. Wagnitz, F. Schäfer and J. Flury